Operating mechanism for double-acting pumps.



(LP. PRESLAR.

OPERATING MECHANISM FOR DOUBLE ACTING PUMPS.

APPLICATION FILED JUNE 1511908} Patented Dec. 14, 1909.

2 SHEEN-SHEET 1 c. F. PRESLAR.

OPERATING MECHANISM FOR DOUBLE ACTING PUEPS. APPLICATION FILED mm: 15. 1908.

943,201 Patented Dea 14, 1909..

.Z'BHEETS-SHEET 2.

mine 452M631??? "A UNITED STATES PATENT OFFTQE.

CHARLES F. PRESLAR, OF NORWOOD, OHIO.

OPERATING MECHANISM. FOR DOUBLE-ACTING PUMPS.

To all whom it may concern:

Be it known that 1, CHARLES F. PRESLAR, a citizen of the United States, residing at Norwood, in the county of Hamilton and State of Ohio, have invented new and useful Improvements in Operating Mechanism for Double-Acting Pumps, of which the following is a specification.

My invention relates to new and useful improvements in pumps, particularly of the kind known as double acting deep well pumps.

The object of this invention is to provide operating mechanism which can be easily removed from the well hole, simple and cheap in construction, and well balanced, as to structure and operation. Furthermore to be of such construction as to facilitate easy access to all working parts, without the addition of other elements of construction which afford means to make such access possible.

To this end my invention consists in a .novel arrangement of gears, and bars operated by the same; and attached to the sucker rods of the pump. The gearing consists of a plurality of gears which mesh with one another and carry pins which operate in slots in the bars attached to the sucker rods. The manner of the meshing of the gearing and connection of the bars to the gears and sucker rods, is such as will cause the sucker rods to operate in opposite directions, which is the essential function of the operation of a double acting deep well pump. However, I do not expect to confine the use of my invention to double acting pumps, but will apply it to any device where such novel mechanism as that comprising my invention can be used advantageously.

My invention is illustrated in the following drawings, in which Figure 1 is a front elevation of my invention shown in connection with a double acting deep well pump, and Fig. 2 is a side elevation of the same with the rear extension of the base broken away.

Referring to the drawings, A is the frame consisting of parts A and A bolted to a common base A and B B and C C are gears which mesh with each other and are keyed to shafts b 6 and 0 0 respectively. Shafts b and b and c and c are journaled in the frame parts A and A Shafts b and c are journaled in journals a a and Specification of Letters Patent.

Application filed June 15, 1968.

Patented Dec. id, 1909.

Serial No. 438,563.

a, a respectively and shafts Z) and c are journaled in similar journals not shown in the drawings.

At some distance from the center of the gears B 13 and C C are pins b 0* and c 0" respectively carrying slotted bars F and F to which are fastened the sucker rods E and G respectively. The bars F and F are confined at their ends in guide slots H and H formed in the frame.

The sucker rod E operates in the hollow sucker rod G and is attached to a water piston in the working barrel of the well in the usual way; the barrel and piston not shown in the drawings. The sucker rod E operates in the sucker rod G without leaking, through the stutling box 7).

Gears J and J are keyed to shafts 1 and 0 respectively, and mesh with a pinion Z keyed to shaft- K. Shaft K is journaled in the frame part A by journal 0 and a journal 70 supported by means ofstand a, bolted to the base A Driving pinion 70* is also keyed to shaft K and may mesh with a pinion of the driving shaft of a motor placed on the rear extension of the base A or itmay be replaced by a pulley to be driven by outside power or some unit power attached to the said extension of the base A The whole frame A and its mechanism may be moved in a horizontal direction on the base A the two being slidably connected in any suitable manner such as the base A forming the shears and the frame part A fitting the same, while the stand a and frame part Afiunay be bolted to the floor of the base A. Bolts a and a when tightened, prevent the sliding of the frame and hold it rigidly in position.

The operation is as follows: Power is transmitted from the source of power to the shaft K, through the pinion if. or its equivalent. Pinion lc keyed to the shaft K, transmits the power to gear J, and J which are keyed to shafts b and 0'. Gears B and C are also keyed to shafts b and and transmit power to gears B and C Slotted bar F, attached to gears B and B will be moving upwardly when the slotted bar F at tached to gears C and C is moving down wardly or conversely. This is obviously the case since all the gears carrying the bars mesh together and the pins which operate in the slots in bars are so situated on the gears as to cause the slotted bars to be in a horizontal position at all times during the operation.

hat I claim as new and desire to secure by Letters Patent of the United States, is

An improved mechanism for imparting an opposite simultaneous reciprocatory motion to pump rods, said mechanism comprising a supporting frame, two horizontal parallel slotted cross heads, two pairs of spur gears, one pair of said gears being arranged in a vertical plane above the other pair of gears,

the gears of one pair being in mesh with each other and with the corresponding gears of the other pair, and crank pins carried by the gears and operating in-the slots of said cross heads.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES F. PRESLAR. itnesses JOSEPH R. GARDNER, BENJAMIN H. EDWARDS. 

